Fastening inserting machine



April 19, 1932.

R. H. LAWSON FASTENING INSERTING mourns Original Filed July 24 192a .6 Sheets-Sheet 1 April 19, 1932.

R. H.. LAWSON FASTENING INSERTING MACHINE Original Filed July 24, 1928 6 Sheets-Shee 2 J46 INVENTUR" April 9, 93 -R. H. LAWSON 1,854,310

- FASTENING INSERTING MACHINE Original Filed July 24, 1928 6 s t s 3 a; 135 130 20 v Y M M mu R. H. LAWSON FASTENING INSERTING MACHINE April 19, 1932.

Originl Filed July 24, 1928 6 Sheets-Sheet 4 April 19, 1932. LAWSON 1,854,310

FASTENING INSERTING MACHINE Original Filed July 24, 1928 6 Sheets-Sheet 5 W+Lmmm mma April 19, 1932. R. H. LAWSON 1,354,310

- FASTENING INSERT'ING MACHINE Original Filed July 24, 1928 6 Sheets-Sheet 6 FiglS.

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Patented Apr. 19, 1932 UNlTE STATES A'rs'r FFICE ROBERT 1-1.. LAWSON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNlETEID SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW JERSEYQA CORPORATION OF NEW JERSEY FASTENING Insnnrme IVlAGHiNE Original application filed July 24, 1928, Serial No. 295,080. Divided and this application filed September 23, 1930. Serial No. 483,909.

This invention relates to staple-forming and inserting mechanisms and is illustrated herein as embodied in a lasting machine of the type disclosed in my copending application for Letters Patent of the United States Serial No. 295,080, filed July 24, 1928, of which this application is a division.

The machine of my copending application is arranged. to work a shoe upper into lasted relation to a last and insole and to insert fastenin gs through the marginal portion of the upper into the insole to secure the upper permanently in lasted relation to the insole. The machine is provided with a jack arranged to receive a last upon which are assembled a shoe upper and an insole, and with a pair of lasting units provided with upper grippers and wipers for tensioning the shoe upper and working it into lasted relation to the last and insole, and means for inserting fastenings to secure the upper in that relation. These two units are located one upon each side of the shoe to be operated upon and by relative movement of the units and the jack operate progressively along the sides of the shoe,

lasting the portion of the upper between the heel breast line and the tip line of the shoe. This machine, moreover, is provided with means for turning the lasting units about axes approximately at right angles to the surface of the insole thereby to maintain the angular relation of the lasting units to the edge of the insole uniform and to insure that the staples will be driven substantially at right angles to the surface of the insole.

It is an object of the present invention to provide improved staple-forming and inserting mechanism, well adapted for use in machines of the type disclosed in my copending application Serial No. 295,080, referred to above, but capable of use in machines of other types, which will be simple and compact in construction and which will be self-contained to such an extent that it may be moved as a unit relatively to the machine parts by which it is operated without interfering in the slightest with its effectiveness. To this end, and in accordance with a feature of the invention, the various relatively movable parts of each of the staple-forming and inserting mechanisms of the illustrated machine are carried'lby aiplurality of lovers so related that all thelevers of each unit are operated and controlled by the rocking of one of. the

levers about its fulcrum. Thus, there need be ly, one on each side of a shoe, through the upper into the insole to secure the shoe parts to each other.

' WVith the above and other objects and features in view the invention will now be described with reference to the accompanying drawings and will be pointed out in the claims.

In the drawings, Y Fig. 1 is a side elevation, with a cover plate removed, of the staple forming and inserting mechanism of the present invention;

Fig. 2 is a detail View of a portion of the driving connections to the staple forming and inserting mechanism;

Fig. 3 is a front elevation of the staple forming and inserting mechanism;

Figs. 4, 5, 6 and 7 are detail views of the means for feeding wire to the staple forming and inserting mechanism;

Fig. 8 is a cross-sectional view through the forepart of a shoe in the process of being lasted by the machine and showing the relation of the staple forming and inserting mechanisms to the shoe parts;

Fig. 9 is a view of the grippers of the lasting unit in the position which they occupy at the conclusion of their updraw movement, showing also portions of the stapling mechanisms in the position which they occupy at the conclusion of the staple forming operation and before the throat has been moved into engagement with the shoe;

Fig. 10 shows the same parts as Fig. 9 in the positions which they occupy at the conclusion of the driving of a staple;

Fig. 11 shows the same parts as Figs. 9 and 10 together with portions of the operating mechanism therefor in the positions which they occupy during the feeding movement of the work Figs. 12 and 13 are detail views of portions of the staple forming and driving mechanism;

Fig. 14 is a large scale view showing the formation of a staple by relative movement of the inside and outside formers;

Fig. 15 is a perspective View on the same scale as Fig. 14 of a plunger shown also in Fig. 12;

Fig. 16 is a large scale view illustrating the clenching of a staple;

Fig. 17 is a perspective view illustrating a Goodyear welt shoe which has been side lasted by the machine; and

Fig. 18 is a front elevation of a machine embodying the present invention.

The invention illustrated herein is embodied in a machine of the type disclosed in my copending application Serial No. 295,080 referred to above. This machine is provided with a. pair of lasting units for working an upper over a last at opposite sides of the shoe simultaneously, and with means for causing relative movement of the lasting levices and the shoe to transfer the point of operation along the shoe from the heel breast line to the tip line. A jack is provided to receive a last upon which are assembled a shoe upper and an insole and two sets of grippers and wipers are arranged to act simultaneously at opposite sides of the shoe to work both sides of the shoe upper into lasted relation to the last and insole. The lasting units, as more fully set forth in the above-mentioned application, are mounted on two supports which aremovable toward and away from each other and which may be rotated so that the grippers and wipers are maintained at all times in operative relation to the insole as the points of operation are transferred along the shoe. The machine is provided with a base 220, supporting a head 222, carrying at the front of the machine a pair of lasting mechanisms having staple forming and inserting units, one of which is shown at 224, Fig. 18. Beneath the units 224 is a jack 226, carried at the forward extremity of an arm 228 supported by a bracket 230 secured to the base 220 of the machine. The jack 226 is provided with a forward arm 232, the upper end of which is connected at 240 to a link 234 the other end of which is connected at 242 to the forward end of a feed lever 236, pivoted at moved to the left, as viewed in Fig. 1, by the feed lever 236 to present different parts of the shoe to be operated on successively to the units 224. The feed lever 236 is operated by mechanism which may be, and preferably is, of the type disclosed in my copending application Serial No. 295,080, referredto above. In describing the present invention it is unnecessary to set forth in detail the construction and mode of operation of the parts referred to above and for a full description of such parts reference may be had to my 00- pending application Serial No. 295,080.

In carrying out the present invention two sets of staple forming and inserting mechanisms are provided arranged to cooperate with the lasting units to work a shoe upper at opposite sides of the shoe into lasted relation to the last and insole and to insert fastenings simultaneously through the upper into the insole to secure the upper permanently in lasted relation to the insole. Since the machine of my eopending application is intended to be used for lasting Goodyear welt shoes the fastenlngs are inserted through the shoe upper into the rib of a ribbed insole mounted on a last and are clenched on anvils which back up the rib of the insole. he shoe is fed step-by-step rearwardly between successive operations of the lasting and staple inserting units so that the lasting operation is performed progressively from the heel breast line forwardly to ti line.

The illustrated staple forming and inserting mechanism is carried by two levers 20, 22 fulcrumed at 24 to plates 26, 28 and a third lever 30 fulcrulned at 32 to the plates 26, 28 (Fig. 3). The plates 26, 28 are secured to the lower end of a support 29 having a cylindrical portion 34 positioned in a sleeve 36 of a bearing block 38 supported for forwardly and rearwardly swinging movement by a pair of trunnions 40, 42 carried by the head of the machine. The cylindrical portion 34 is provided at its lower end with a flange 44 and at its upper end with a collar 46 clamped to the cylindrical portion 34. The flange 44 and the collar 46 serve to prevent vertical movement of the cylindrical portion in the bearing block 38 but permit the cylindrical portion to rotate about its approximately vertical axis to present the staple forming and inserting mechanism substantially at right angles to the surface of the insole. Housed within the cylindrical portion 34 is a pair of similar slide members or cross-heads 48, 50 each having a semicylindrieal outline. These slide members 48, 50 are moved lengthwise of the cylindrical portion 34 in the same manner as in the machine of my copending application referred to above and are effective to operate the staple forming and inserting mechanism 52 and upper gripping pincers 54, respectively, regardless of and without interference by swinging movement of the bearing block 38 on its trunnions '40, 42 or turning movement of the support 29 about the axis of its cylindrical portion 34. To permit this turning movement each of the slide members 48, 50 is provided with a groove 56 parallel to the circumference of the slide member and receiving a block 58 having a cylindrical outer surface so as to permit rotation of the slides 48, 50 about their axis while the blocks 58 remain stationary. The blocks 58 are connected by links 60, 62 to the means for operating the staple inserting mechanism 52 and the upper gripping pincers 54, respectively. The slides 48, 5-0 are connected to the staple inserting mechanism 52 and the upper gripping pincer 54, respectively, by links 64, 66 (Fig. 1).

. The link 64 is pivoted to the lever 20 at 68. An arcuate driver 70 (Figs. 12 and 14), T-shaped in cross section, is clamped at,72 to the lever 20 and passes through a similarly shaped driver passage 74 formed in a throat member 76 carried by the lever 22. An

inside former 78 is provided at the lower end of a lever 80 fulcrumed to the plates 26, 28 at 32. A rod 82 is pivoted at one end to the lever 80 and passes at the other end through a hole 84 formed in an arm 86 of the lever 30. A nut and lock nut 88 threaded on the end of the rod 82 limit the movement of the lever 80 in a clockwise dithe influence of. a compression spring 90 a surrounding the rod 82 and hearing at one end against a shoulder formed upon that rod and at the other end against the arm 86 of the lever 30.

As illustrated, the lever 22 is in the form of two parallel plates straddling the lever 20 and the lever 30 similarly straddles the lever 80. The plates of the lever 30 are provided with a pair of parallel slots 92 the upper portions 94 of which are straight and the lower portions 96 of which are formed as arcs of circles which, when the parts are in staple inserting position, are concentric with the fulcrum. 24 of the levers 20 and 22. The slots 92 receive a pair of rolls 98 carried at the outer end of the lever 20. Thus, as the lever 20 is rocked in a clockwise direction as viewed in Fig. 1, the lever 30 will be rocked in a counterclockwise direction until. the rolls 98 reach the arcuate portion 96 of the slot When this position is reached, further movement of the lever 20 will not affect the position of the lever 30 which, on the contrary, will be locked against rocking movement by the presence of the rolls 98 in the arcuate portions of the slots 92.

The plates of each lever 22 are provided with a pair of straight slots 100 receiving a pair of rolls 102 carried by the lever 30. As the lever 30 is rocked during the earlier part of the movement of the lever 20, while the rolls 98 move along the straight portions 94 of the slots 92, the lever 22 is also rocked in a clockwise direction through the engagement drawn from the center of the fulcrum 24 to the center of theroll 102 and from the center of the roll 102 to thecenter of the fulcrum are at right angles to each other. At this time also the outer end of the throat member 7 6 is pressed firmly'against the work piece, N

as shown in Fig. 10, and it is so held during the driving of each staple. I

Each throat member 7 6 is formed of two principal parts, as best shown at the righthand side of Fig. 8. These consists of a block -i 104 having an arcuate outer surface concentric with the fulcrum 24 in which surface'is ned driver passage or throat opening of E .hape cross section corresponding to that of the driver 70, and a cover plate 106 formed 'i'.

with a slot 108' (Figs. 8 and 14) to permit the entrance of the inside former 78. Adjacent to the slot 108, the cover plate 106 is provided with a shoulder 110 (Figs. 10 and '11) co-operating with a pawl 112' pivoted at 114 to the lever 80 and urged inv a clockwise direction, as viewed in Figs. 1, 11 and 13, by a spring 116 into engagement with a pin118 carried by the lever 80. The lower portion 120 of the forward end of the cover plate 106 serves as a wiper to wipe the shoe upper 122 over the feather and into engagement with the rib of the insole 124 (Fig. 8).

The wire 126 from which the staples are formed is fed to the staple forming and in- I serting mechanismr52 by mechanism hereinafter described through tubesv 128, each having an adjustable end portion 130 leading to a passage 132 formed in the block 104 of the throat member 76 and enclosed by the cover plate 106, each passage 132 being positioned in alinement with the outlet end 130 of the corresponding tube 128 at the time the wire 126 is fed and being moved from that posi- VVhen, however,

tion to shear a length of wire from which a staple is to be formed during the return movement of the throat member 76. The feeding of the wires takes place soon after the staples have been driven and while the parts are approximately in the position shown in F ig. 11.

Each throat block 104 carries a springpressed plunger 134 (Figs. 1, 8, 11 and 12) having a head 136 in which is formed a slot 138 which, when the plunger is in the position shown in Figs. 9, 11 and 12, constitutes a part of the driver passage. The upper portion of the head 136 forms also partof one of the walls of the wire passage132. The upper end of the slot 138'is somewhat enlarged, as best shown in Fig. 15, in order freely to receive the leading end of the driver 70 and is provided with a narrower slot 140 to receive the upstanding flange of the driver 5 which flange is beveled at its entering end, as

clearly shown at 142 in Fig. 12. Thus, the walls of the wire passage 182 are substantially complete at the time the wire is fed.

The plunger 134 is positioned in the path of movement of the inside former 78 and, when the inside former 78 moves into operative position, is displaced leaving the inside former just ahead of the wire from which the staple is to be formed, as shown in Figs. 8 and 1.4. Downward and forward movement of the throat member 76 relatively to the inside former 78 at this time causes the walls of the driver passage 74 to serve as outside formers, as shown in Fig. 14, forming a staple from a piece of wire.

When the lever 20 is rocked in a clockwise direction from the position shown in Fig. 1, which shows the parts of the lasting and stapling mechanisms in the position they assume when the machine is at rest, the rocking movement of the levers 20 and 22 is rela tively great, the lever 22 moving almost as fast as the lever 20 so that the driver 7 0 does I not reach the position of the wire passage until after a staple has been formed and the inside former 78 withdrawn. After the 'staplehas been formed, as shown in Fig. 9,

however, and after the inside former has been withdrawn, the lever 22 slows down and finally comes to rest in engagement with the work, before the lever 20 has finished its movement. Continued movement of the lever 20 while the levers 22 and 30 are stationary causes the driver 70 to move forward and drive a staple through the shoe upper 122 and the rib of the insole 124, the staple being clenched against a clenching cavity 144 formed in a substantially vertical surface of a presser foot 148 secured to the plates 26, 28. The presser feet 146, 148 of the machine (Fig. 8) thus, in addition to serving as clenching anvils serve also as abutments to position the shoe vertically and as gages bearing against the inner surface of the rib of the insole 124 to position the shoe transversely.

When the inside former 78 first moves toward the throat member 7 6, its pawl engages the throat member above the shoulder 110, the pawl 112 serving to hold the inside former 78 out of the driver passage 74. This is during the return movement of the levers 20, 22 and 30. Continued movement of the lever 22 and the throat member 76 in a counterclockwise direction, as viewed in Fig. 11, permits the pawl 112 to drop off the shoulder 110 so that the inside former 78 can enter the driver passage 74, displacing the plunger 134 and leaving the parts in the position shown at the righthand side of Fig. 8 ready for the formation of a staple which takes place soon after the starting of the downward movement of the throat member 76 in the next cycle of operation of the staple forming and inserting means. As this takes place, the pawl 112 swings in a. counterclockwise direction to the position shown in Fig. 9. Soon after this the counterclockwise movement of the lever 30 causes the arm 86 of that lever to engage against the nut 88 withdrawing the inside former 78 from the driver passage 74 and leaving a complete staple in the driver passage ready to be inserted. The withdrawal of the inside former 78 also permits the plunger 184 to move forward thereby completing the driver passage.

The wire 136 from which the staples are formed may be supplied from any convenient source of supply to wire feeding mechanism 150 carried by each of the staple forming and inserting mechanisms of the machine. The wire passes through a tube 152 to feed rolls 154, 156 of the wire feeding mechanism 150. From the feed rolls 154, 156 the wire passes through the tube 128 to its outlet 130 as already described. The trunnion 42 about which the slee e 86 rocks is provided with a way 158 to receive a cam operated slide 160. Fulcrumed at 162 to the sleeve 36 is a bell crank lever 164 having an upwardly extending arm provided with a ballshaped end 166 located in a notch 168 formed in the slide 160. The other arm of the bell crank lever 164 extends transversely of the machine and terminates in a ball 170 positioned in a notch 172 formed in the upper end of a rod 176 mounted for vertical sliding movement in a block 178 secured to the side plate 28. The rods 174, 176 are connected, as shown at 180, in such a manner that the stapling mechanism may have a considerable arcuate movement about an approximately vertical axis without interference by reason of the connection of the rods 174, 176 and without interfering with the transmission of endwise movement from the rod 174 to the rod 176.

At its lower end the rod 176 is provided with rack teeth 180 (Fig. 5) engaging a pin ion 182 5) formed upon a short, substantially horizontal shaft 184 to which is clamped a finger 186 having pivoted at its outer end a pawl 188 cooperating with a ratchet 190 loose upon the shaft 184. A spring 192 is secured at one end to the arm 186 and at the other end to the? pawl 188 thereby holding the pawl 188 in engagement with the ratchet 190. The feed roll 154 is secured to the ratchet 190 and to a gear 194 so that that group of parts can be rotated by the pawl 188, step-by-step, about the shaft 184, a bushing 196 surrounding the shaft 184 and providing a bearing for the ratchet 190 and the feed roll 154.

Another pinion 198, mounted upon a shaft 200 having a bearing in a block 202, (Fig.

4), meshes with the gear 194 and is rigidly connected to the feed roll 156 so that the two feed rolls are driven at appropriate speeds. The block 202 is secured to the block I 17 8 by a stud 204i passing through a hole in the block 202 and threaded into the block 178, a spring 206 being interposed between the block 202 and a nut 208 threaded upon the stud 204. Thus it will be seen that reciprocation of the rod'l'TG is effective to oscillate the pawl 188 thereby driving the feed rolls 15 i, 156 step-by-step and feeding appropriate lengths of wire to the staple forming and inserting mechanism 52.

Having described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. A staple inserting machine having, in combination, a jack arranged to carry a last having a ribbed sole member; positioned thereon, and stapling mechanism arrangec to insert staples simultaneously into opposite marginal portions of the rib of the sole member with the legs of the staples substantially parallel to the bottom surface of the sole member.

2. A staple inserting machine having, in. combination, stapling mechanism arranged to insert staples simultaneously in opposite directions through the upper and the rib of a sole member of a shoe on a last at opposite sides of the sho-eto secure together the upper and the sole member, and means for feeding the shoe in the general direction of the length of the shoe past the staple inserting mechanism as a succession of pairs of staples are inserted.

3. A staple inserting machine having, in combination, stapling mechanism arranged to insert staples simultaneously through the upper and the rib of the insole of a shoe on a last at opposite'sides of the shoe with the legs of the staple substantially parallel to the thread surface of the last, and means for feeding the shoe in the general direction'of the length of the shoe past the staple inserting mechanism as a succession of pairs of staples are inserted,

4 A staple inserting machine having, in combination, a work support arranged to carry a last having a'partly completed shoe thereon, stapling mechanism arranged to insert staples simultaneously through the upper and the rib of a sole member of the shoe on the last at opposite sides of the slice to seand the sole cure together the. shoe upper v a 1 Ms 1 z i memoei said staples being msei ted \Vlbl'l terr legs extending substantially at right angles to said rib, and means for moving the vvork support past the staple inserting mechanism as a succession of pairs of staples are inserted.

5. A staple inserting machine having, in combination, an inside former, an outside former, a lever, a driver carried by the lever, and connections between the lever and the inside and outside formers whereby rocking of the lever about its fulcrum is operative to cause relative swinging movement of the inside and outside formers to form a staple from a piece of wire presented thereto and then to-causc the driver to insert the staple in a work piece.

6. A staple inserting machine having, in combination, a throat. member movable t0- wardand from the work and having a closed driver passage formed therein surfaces of which serve as an outside former, an inside former movable into and out of said driver passage, a lever, a driver carried by the lever arranged for reciprocation through the driver passage, means for rocking the lever about its fulcrum, and connections between the lever, the throat member and the inside former whereby swingingof the lever causes relative movement of the inside and outside formers thereby forming a staple from a piece of wire presented thereto, moves the inside former out of the driver passage in the throat member while the throat member moves into engagement with the work, and then moves the driver through the driver passage to drive the staple into a work piece.

7. A- staple inserting machine having, in combination, a throat member having I an arcuate driver. passage surfaces of which serve as an outside former, an inside former, a lever, an arcuate driver carried by the lever concentric with the fulcrum of the lever and arranged for reciprocation through the driver passage, means for rocking the lever about its fulcrum, and connections between the lever, the throat member and theinside former whereby rocking of the lever moves the throat member relatively to the inside former thereby forming a staple from a piece of wire presented to the formers and bringing the throat member into engagement with a work piece presented to the machine, and then moves the driver through the driver passage to drive the staple into a work piece.

8. A fastening inserting machine-having, in combination, a lever, a throat member provided with a driver passage carried by said lever, a second lever, a driver carried thereby and positioned in said driver passage, means connected to the second lever for swinging said second lever about its fulcrum, and connections between the two levers whereby operation of said swinging means is effective through said connections first to movethe throat'member into engagement. with the work and then to move the driver through the driver passage to insert a fastening in the work. g l i 9. A fastening inserting machine having, in combination, a lever, a throat member providedwith an arcuate driver passage carried by said lever, another lever, an arcuatedriver carried thereby in said driver passage and arranged upon relative swinging movement of the two levers for reciprocation through the driver passage, and connections between the two levers whereby swinging of the driver carrying lever is operative to swing the other lever thereby moving the throat member into engagement with the work and then to move the driver through the driver passage to insert a fastening in the work.

10. A fastening inserting machine having, in combination, a lever, means for rocking said lever about its fulcrum, a throat member having a driver passage therein, a driver carried by said lever in the driver passage, a second lever carrying said throat member arranged for rocking movement about the same fulcrum as the first lever, and connections between the two levers arranged upon rocking of the first lever to cause the second lever to move the throat member into engagement with the work and then to come to rest while the first lever and the driver carried thereby continue their movement to drive into the work a fastening guided by the driver passage.

11. A fastening inserting machine having, in combination, a lever, means for rocking said lever about its fulcrum, an arcuate driver carried by said lever, a throat member having an arcuate driver passage therein corresponding in curvature to said driver and in which the driver is located, a second lever carrying said throat member arranged for rocking movement about the same fulcrum as the first lever, and connections between the two levers arranged upon the rocking of the first lever to cause the second lever to move the throat member into engagement with the work and then to come to rest while the first lever and the driver carried thereby continue their movement to drive into the work a fastening guided by the throat.

12. A fastening inserting machine having a throat member provided with a driver passage and arranged for movement into and out of engagement with a work piece, a driver mounted for movement in the driver passage of said throat member toward and from the work, and connections between the throat member and the driver whereby during the first portion of the fastening inserting stroke the driver moves relatively slowly while the throat member is moved more rapidly into engagement with the work and then comes to rest, after which the motion of the driver is accelerated and is thereby effective to drive a fastening into the work.

13. A fastening inserting machine having an anvil provided with a clenching surface, a throat member movable into engagement with a work piece positioned against said anvil, said throat member being provided with a driver passage arranged to guide a fastening into clenching relation to said an vil, a driver operating in said driver passage, means for moving said throat member t ward and from the work comprising a roll co-operating with surfaces connected to the throat member, means for moving said roll through a predetermined path thereby moving the throat member into engagement with the work, and means for thereafter holding the roll against movement thereby holding the throat member against movement while a fastening is being driven.

14. A fastening inserting machine having an anvil provided with a clenching surface, a threat member movable into engagement with a work piece positioned against said anvil, said throat member being provided with a driver passage arranged to guide a fastening into clenching relation to said anvil, a driver operating in said driver passage, means for moving said throat member toward and from the work, means for holding the throat member against the work while each fastening is being inserted, and means for feeding the work between the insertion of successive fastenings.

15. A fastening inserting machine having, in combination, a plurality of interconnected levers, and staple forming and inserting mechanism carried by said levers constructed and arranged so that the staple forming and inserting mechanism is operated by the rocking of one of the levers about its fulcrum to form staples from wire and to insert the staples in a work piece presented to the machine.

16. A fastening inserting machine having, in combination, a plurality of interconnected levers, staple forming and inserting mechanism carried by said levers constructed and arranged so that the staple forming and inserting mechanism is operated by the rocking of one of the levers about its fulcrum to form staples from wire and to insert the staples in a work piece presented to the machine, driving mechanism for the machine, and a single movable connection between the driving mechanism and said one of the levers.

17. A fastening inserting machine having, in combination, a plurality of interconnected levers, staple forming and inserting mechanism carried by said levers constructed and arranged so that the staple forming and inserting mechanism is operated by the rocking of one of the levers about its fulcrum to form staples from wire and to insert the staples in a work piece presented to the machine, driving mechanism for the machine, and a link operatively connecting the driving mechanism and said one of the levers.

18. A staple inserting machine having, in combination, three relatively movable levers, throat member having a driver passage carried by one of the levers, a driver carried by another of the levers for movement through the driver passage of the throat member, an inside former carried by the third lever arranged to co-operate with an outside former carried by the throat member to form staples from wire presented thereto, andconnections between the three levers arranged to cause rocking movement of one of the levers to transmit motion to another of the levers to form a staple from a piece of wire and then to drive the staple into a work piece presented to the throat member. A

'19. A staple inserting machine having, in combination, three relatively movable levers, a throat member having a driver passage carried by one of the levers,"a driver carried by another or" the levers for movement through the driver passage of the throat member, an inside former carried by the third lever arranged to co-operate with an outside former carried by the throat member to form staples from wire presented thereto, and connections between the three levers arranged to cause rocking movement'of one of the levers to transmit motion to the other levers to form a staple, to move the throat member into engagement with the work, and then to drive the staple into the work engaged by the throat member.

20. A staple inserting machine having a throat member provided with an arcuate driverpassage portions of the walls of which serve as an outside former, an arcuate driver arranged for movement through said driver passage, an inside former arranged to be moved into and out of the driver passage to co-operate with said outside former, a spring pressed plunger having surfaces normally forming a portion of the driver passage but displaceable by the inside former, and means for causing relative arcuate movement of the inside and outside formers about the center of curvature of the arcuate driver passage to form a staple from a piece of wire. presented to said formers.

21. A staple inserting machine having, in combination, a lever, an arcuate driver carried'thereby, means for swinging the lever about its fulcrum, staple forming means comprising an inside and an outside former, and connections between the inside and outside formers and said lever arranged so that in the first part of the swinging movement of the lever the inside and outside formers are given relative movement to form a staple from a piece of wire presented thereto and during the later part oi the swinging movement of the lever said inside and outside formers are held stationary by said connections while the driver drives the staple into the work.

- 22. A staple inserting machine having a driver, a throat member provided with a driver passage, a reciprocating member connected to the driver and arranged to reciprocate the driver through the driver passage, staple forming means comprising an inside and an outside former, and connections between these parts whereby during the first part of the movement in one direction of said reciprocating member the inside and outside formers are given relative movementin one direction to form a staple from a piece of wire presented thereto, then separate movements relative to each other in dillerent directions, and thethroat member is moved into engagement with the work and during 23. A staple inserting machine having, in

combination, a lever, a throat member carried thereby formed to provide a driver passage and an outside former, another lever, an inside former carried thereby co-operating with the outside former, and means for swinging the two levers about their fulcrums operative to move the throat member toward the work, tlierebycausing relative movement of the inside and outside formers and forming a staple from a piece of wire presented thereto, and then to move the throat member into engagement with the work.

24:. A staple inserting machine having, in combination, a lever, a throat member carried thereby formed to provide a driver passage and an outside former, a second lever, a driver carried thereby for reciprocation through said driver passage, an inside former cooperating with the outside former, and connections between the two levers whereby swinging of one of the levers about its fulcrum is operative to move the'throat member toward the work, thereby causing rela tive movement of the inside and 'outside formers and forming a staple from a pieceof wire presented thereto, then to move the throat member into engagement with the work and to move the driver through the driver passage to insert said staple in. the work. r V

25. A stapleinserting machine having, in combination, a'lever fulcrumed for swinging movement, a throat member carried thereby provided with a driver passage, an outside former carried by the throat member, a second lever also fulcrumed for swinging movem'ent, an inside former carried thereby, means for swinging the inside former into (Jo-operative relation with the outside former, and means for rocking the first-named lever about its fulcrum thereby moving the outside former relatively to the inside former to form a staple from apiece of wire presented thereto. a I

26. A staple inserting machine having, in combination, a lever fulcrumed'for swinging movement, a throat membercarried thereby provided with an arcuate driver passage concentric with the axis about which the throat member swings, an arcuate driver reciprocated therethrough, an outside former carried by the throat member constituted by part of the wall of the driver passage, a second lever also fulcrumed for swinging movement, an inside former carried thereby, and means for swinging the inside former into co-oper ative relation with the outside former, for rocking the first-named lever about its tulcrum thereby moving the outside former relatively to the inside former to form a staple from a piece of wire presented thereto, and for operating the driver to drive the staple into a work piece presented to the throat member.

27. A staple inserting machine having, in combination, three levers carrying respectively a driver, a throat member having a driver passage and an outside former, ant an inside former, and connections between the three levers constructed and arranged so that swinging of one of the levers swings the other two levers to cause relative movement of the inside and outside formers thereby forming a staple from a piece of wire presented thereto and moves the throat member into engagement with a work piece, after which the driver carrying levers is swung to cause the driver to drive the staple through the driver passage into the work while the throat carrying lever is restrained against swinging movement.

28. A staple forming machine having a member provided with a passage portions of the walls of which serve as an outside former, an inside former arranged to be moved into and out of the passage to co-operate with said outside former, a springpressed plunger having surfaces normally forming a portion of the passage but displaced by the inside former, and means for causing relative movement of the inside and outside formers in the direction of the passage to form a staple from a piece of wire presented to said formers.

29. A staple inserting machine having, in combination, a lever, a throat member carried thereby provided with a driver passage and an outside former, a second lever, a driver carried thereby for reciprocation through the driver passage, a third lever, an inside former carried thereby arranged to co-operate with said outside former, and connections between the levers whereby swinging of one of the levers about its fulcrum causes relative movement of the inside and outside formers to form a staple from a piece of wire presented thereto, then separates the inside and outside formers and moves the throat member into engagement with the work piece, and thereafter moves the driver through the driver passage to insert the staple in the work piece.

30. A staple forming and inserting machine having, in combination, a lever, a throat member carried thereby provided with an arcuate driver passage and an outside former, a second lever, an arcuate driver carried thereby for reciprocation through the driver passage, a third lever, an inside former carried thereby arranged to co-operate with said outside former, and roll and slot connections between the levers whereby swinging of one of the levers about its fulcrum causes relative movement of the inside and outside formers to form a staple from a piece of wire presented thereto, then separates the inside and outside formers and moves the throat member into engagement with the work piece, and thereafter moves the driver through the driver passage to insert the staple in the Work piece.

31. A, staple forming and inserting machine having, in combination, three levers carrying respectively a driver, a throat member having a driver passage and an outside former, and an inside former, and roll and slot connections between the three levers constructed and arranged so that swinging of the driver carrying lever about its fulcrum swings the other two levers about their fulcrums to cause relative movement of the inside and outside formers thereby forming a staple from a piece of wire presented thereto and then moves the throat member into engagement with a work piece, after which the driver carrying lever continues its movement to cause the driver to drive the staple through the driver passage into the work while at the same time restraining the other two levers against swinging movement.

32. A fastening inserting machine having, in combination, a slotted lever fulcrumed for swinging movement, a throat member carried thereby provided with an arcuate driver passage concentric with the aXis of swinging movement of the lever, a second lever fulcrumed for swinging movement upon the same aXis as the first, an arcuate driver oarried by said second lever and arranged for reciprocating movement in said driver passage, a third lever fulcrumed for swinging movement about an axis remote from that of the other levers and provided with a roll positioned in the slot of the first-named lever, a second. roll carried by the second lever and positioned in a slot formed in the third lever, said last-named slot having a portion eccentric relatively to the fulcrum of the first and second levers and a portion formed on an arc of a circle, and means for swinging the second lever about its fulcrum whereby, through their roll and slot engagements, the first and third levers are swung about their tulcrums until the roll carried by the second lever moves the third lever into such position that the arcuate portion of its slot is concentric with the fulcrum of the second lever whereupon the roll carried by the second lever, being then positioned in said arcuate portion of the slot, prevents further movement of the third lever, the third lever also holding the first lever against swinging movement by reason of the location of the roll carvied by the third lever in the slot of the first lever, thus holding the throat member stationary but permitting continued movement of the second lever and of the driver carried 5 thereby through the driver passage of the throat member.

In testimony whereof I have signed my name to this specification.

ROBERT H. LAWSON. 

